3. The CNPD may provide that the data held in manual filing systems and kept solely for the purposes of historical research need not be brought into conformity with Articles 8, 9 and 10 provided they are in no case reused for a different purpose. Article 48 (Existing automated filing system) The existing automated files on the date of the entry into force of this Law must rigorously accomplish what those files and adapt them within a period of six months. Article 49 (Entry into force) This Law comes into force thirty days following its publication. Approved on 20 December 2000. The President of the Assembleia Nacional, António do Espírito Santo Fonseca. Enacted on 10 January 2001. Hereby published. The President of the Republic of Cape MASCARENHAS GOMES MONTEIRO. Verde, ANTÓNIO MANUEL Counter-signed on 13 January 2001. The President of the Assembleia Nacional, António do Espírito Santo Fonseca. ________________